Rotating shaft structure of shower support arm

Abstract

According to the rotating shaft structure of the shower support arm, the product structure is optimized, the flow is larger, and stress is more stable. The rotating shaft structure of the shower support arm comprises a shell and a shaft sleeve, the two sides of the shell are provided with a first rod piece and an opening respectively. A hollow rotating shaft is arranged in the shell, the rotating shaft communicates with the first rod piece, an annular water passing groove is formed in the circumferential surface of the rotating shaft, and a plurality of water passing holes communicating into the rotating shaft are formed in the bottom of the water passing groove; the shaft sleeve is sleeved on the circumferential surface of the rotating shaft in a dynamic sealing manner, and one side of the shaft sleeve is provided with a second rod piece communicated with the water passing groove; the second rod piece penetrates out of the opening of the shell; the axis of the first rod piece and the axis of the second rod piece are both perpendicular to the axis of the rotating shaft, and the perpendicular feet of the axis of the first rod piece and the axis of the second rod piece on the axis of the rotating shaft are the same point. No part is arranged in the rotating shaft, so that the flow is larger; the second rod piece and the first rod piece are located on the same plane all the time, stress is more stable, the appearance is neat and attractive, and the industrial design requirement is met.

Description

Technical Field

[0001] The invention relates to the technical field of bathroom devices, in particular to a rotating shaft structure of a shower arm. Background Art

[0002] A shower arm, also known as a shower rod or shower bracket, is a part of a bathroom fixture. The shower arm itself is a component that flows through the water, and it can fix and adjust the position of a shower head (such as an overhead shower).

[0003] In the prior art, for example, the patent with the authorization announcement number US8621681B2 discloses an articulated shower arm, which has an elbow connected to the shower head and an arm connected to the water supply end; the elbow has a certain length to expand the shower head range at one end thereof, and the arm is usually fixed to the wall and pivotally cooperates with the other end of the elbow, so that the elbow can rotate relative to the arm to adjust the angle. In addition, a locking mechanism is also provided at the pivot point of the two to limit the rotation, thereby fixing the elbow / shower head at a certain angle / position.

[0004] The general structure of other shower arms in the prior art is similar to the above patent. The axes of the arm and elbow are respectively located on two parallel planes, and the two cannot be colinear, and a shaft needs to be set between the ends of the two as a rotating shaft. Since the arm and elbow are water-passing parts, and the shaft must be in the water path of the shower arm, this type of structure will not only reduce the flow rate of the shower arm and make it difficult to meet user needs, but also put forward higher requirements on the quality of the shaft: if the shaft is a plastic part, it may be difficult to meet the strength requirements of the product, and the service life of the shower arm will be shortened; if the shaft is a metal part, it must be rust-proof, otherwise it will affect the water quality in the shower arm, and thus affect the user experience. Summary of the invention

[0005] The object of the present invention is to provide a rotating shaft structure of a shower arm, so as to solve the problems existing in the prior art, optimize the product structure, increase the flow rate and make the force more stable.

[0006] In order to achieve the above object, the solution of the present invention is: A rotating shaft structure for a shower arm comprises a shell and a sleeve; a first rod and an opening are respectively provided on both sides of the shell; a hollow rotating shaft is provided in the shell, the rotating shaft is connected to the first rod, and an annular water groove is provided on the circumference of the rotating shaft, and a plurality of water holes connected to the rotating shaft are provided at the bottom of the water groove; the sleeve is dynamically and sealingly sleeved on the circumference of the rotating shaft, and a second rod connected to the water groove is provided on one side of the sleeve; the second rod passes through the opening of the shell; the axes of the first rod and the second rod are both perpendicular to the axis of the rotating shaft, and the feet of the axes of the first rod and the second rod on the axis of the rotating shaft are at the same point.

[0007] A rotating shaft seat, an adapter and a bottom cover are arranged in the shell; the rotating shaft and a connecting shaft parallel to the rotating shaft are arranged on the surface of the rotating shaft seat facing the inside of the shell, and a connecting groove is arranged on the surface of the rotating shaft seat facing away from the inside of the shell, and the two ends of the connecting groove are respectively connected with the rotating shaft and the connecting shaft; the adapter is statically and sealingly inserted into the end of the first rod, and the connecting shaft is statically and sealingly inserted into the side of the adapter; the bottom cover is statically and sealingly covered on the periphery of the connecting groove.

[0008] Preferably, the bottom cover and the rotating shaft seat are assembled by; the periphery of the connecting groove is provided with a step portion for the bottom cover to cooperate with, and the step portion is provided with a flange for welding.

[0009] Preferably, a partition is provided in the shell, a nut is embedded in the end of the rotating shaft, a screw is passed through the partition and threadedly connected in the nut to achieve locking of the rotating shaft on the partition; a slider and a slider slot are provided between the adapter and the partition, and a buckle and a buckle slot are provided between the adapter and the rotating shaft seat.

[0010] The rotating shaft structure of the shower arm also includes a locking member, an elastic member, a limiting member and an operating member; a first concave-convex portion is provided on the circumferential surface of the sleeve; the locking member is slidably fitted in the shell along the radial direction of the sleeve, and is provided with a second concave-convex portion matching the first concave-convex portion; the elastic member is arranged in the shell and acts on the locking member, so that the second concave-convex portion is engaged with the first concave-convex portion to achieve locking of the sleeve; the limiting member is movably fitted on the sliding path of the locking member, so that the locking member cannot be separated from the sleeve; the operating member is exposed to the shell and linked with the limiting member to drive the limiting member.

[0011] Preferably, the first concave-convex portion is a plurality of straight teeth with first inclined surfaces on both sides, and the second concave-convex portion is a plurality of straight teeth with second inclined surfaces on both sides.

[0012] Preferably, the elastic member is a spring; and one end of the locking member is provided with an axial groove for embedding the elastic member.

[0013] Preferably, the limiting member is provided with a giving opening for giving way to the elastic member, and giving steps are provided on both sides of the giving opening; when the limiting member is in the sliding path of the locking member, the giving step is misaligned with the locking member, and the locking member can slide; when the limiting member is out of the sliding path of the locking member, the giving step is opposite to the locking member, and the locking member can slide to embed into the giving step and compress the elastic member at the same time.

[0014] Preferably, the operating member is a button with two ends swingably engaged on the housing, and one end of the button is movably connected to the limiting member; the limiting member is provided with a hook hooked on the inner wall of the operating member.

[0015] Preferably, a latch for swinging engagement with the operating member is provided in the housing.

[0016] After adopting the above technical solution, the present invention has the following technical effects: (1) The present invention comprises a first rod-rotating shaft-water hole-water groove-second rod to form a water path at the rotating shaft position of the shower arm, thereby realizing the connection between the first rod and the second rod, and the water path of the rotating shaft is connected from the inside of the rotating shaft to the water groove on the circumference of the rotating shaft. When the sleeve rotates to any angle on the circumference of the rotating shaft, the rotating shaft can be connected to the second rod through its water groove. There are no other parts or structures in the rotating shaft, and the water flow is not blocked. The flow rate of the shower arm depends on the number and aperture of the water holes, which is easy to design and not affected by other factors. Compared with the structure of the prior art, it can achieve a larger and more stable flow rate, and the water quality will not be affected. (2) When the sleeve rotates around the shaft, the angle of the second rod changes relative to the first rod, and the second rod and the first rod are always in the same plane, so the force is more stable. At the same time, the second rod can also rotate to a coaxial state with the first rod, so that the shower arm forms a straight line, which is neater and more beautiful in appearance and meets the requirements of industrial design. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 An exploded view of a specific embodiment of the present invention; Figure 2 is a cross-sectional view of a specific embodiment of the present invention; Figure 3 A three-dimensional diagram of a shaft sleeve according to a specific embodiment of the present invention; Figure 4 A three-dimensional diagram of a locking member according to a specific embodiment of the present invention; Figure 5 It is a three-dimensional diagram of a limiting member according to a specific embodiment of the present invention; Figure 6 Schematic diagram of parts and components using some structures of the present invention Figure 1 ; Figure 7 Schematic diagram of parts and components using some structures of the present invention Figure 2 ; Figure 8 Schematic diagram of parts and components using some structures of the present invention Figure 3 ; Fig. 9 A schematic diagram of a two-section shower arm to which the present invention is applied; Fig.10 A schematic diagram of a three-section shower arm to which the present invention is applied; Description of Figure Numbers: 1-housing; 11-first rod; 12-opening; 13-partition plate; 131-slider slot; 2-shaft sleeve; 21-second rod; 22-first concave-convex portion; 221-first inclined surface; 3-spindle seat; 31-spindle; 311-water trough; 312-water hole; 313-installation slot; 32-connecting shaft; 33-connecting slot; 331-step portion; 332-flange; 34-buckle slot; 4-adapter; 41-slideway; 42-guide groove; 43-slider; 44-clip; 5- bottom cover; 6- first sealing ring; 7- second sealing ring; 8- nut; 9-Screws; 10-Decorative cover; 20-third sealing ring; 30-locking member; 301-second concave-convex portion; 3011-second inclined surface; 302-axis groove; 40- elastic member; 50-limiting member; 501-giving opening; 502-giving step; 503-limiting surface; 504-hooking hook; 60-operating part; 70- latch; 80-latch seat; 801-claw; 90-connector. DETAILED DESCRIPTION

[0018] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0019] refer to Figure 1-5 As shown, the present invention discloses a rotating shaft structure of a shower arm, comprising a housing 1 and a shaft sleeve 2; The first rod 11 and the opening 12 are respectively provided on both sides of the housing 1; a hollow shaft 31 is provided in the housing 1, the shaft 31 is connected to the first rod 11, and an annular water groove 311 is provided on the circumference of the shaft 31, and a plurality of water holes 312 connected to the shaft 31 are provided at the bottom of the water groove 311; The shaft sleeve 2 is dynamically and sealingly sleeved on the circumference of the rotating shaft 31, and a second rod 21 connected to the water channel 311 is provided on one side of the shaft sleeve 2; the second rod 21 passes through the opening 12 of the housing 1; The axis a of the first rod 11 and the axis b of the second rod 21 are both perpendicular to the axis c of the rotating shaft 31 , and the feet of the axis a of the first rod 11 and the axis b of the second rod 21 on the axis c of the rotating shaft 31 are the same point o.

[0020] Through the above scheme, the present invention comprises the first rod 11-rotating shaft 31-water hole 312-water groove 311-second rod 21 to form a water path at the rotating shaft position of the shower arm, so that the first rod 11 is connected to the second rod 21, and the water path of the rotating shaft 31 is connected from the inside of the rotating shaft 31 to the water groove 311 on the circumference of the rotating shaft 31. When the sleeve 2 rotates to any angle on the circumference of the rotating shaft 31, the rotating shaft 31 can be connected to the second rod 21 through its water groove 311. There are no other parts or structures in the rotating shaft 31, and the water flow is not blocked. The flow rate of the shower arm depends on the water hole The number and aperture of 312 are easy to design and are not affected by other factors. Compared with the structure of the prior art, a larger and more stable flow rate can be achieved, and the water quality will not be affected. When the sleeve 2 rotates around the rotating shaft 31, the second rod 21 changes its angle relative to the first rod 11, and the second rod 21 and the first rod 11 are always on the same plane, and the force is more stable. At the same time, the second rod 21 can also rotate to a coaxial state with the first rod 11, so that the shower arm forms a straight line, which is neater and more beautiful in appearance, meeting the requirements of industrial design. In addition, the size of the opening 12 determines the swing range of the second rod 21.

[0021] Specific embodiments of the present invention are shown below.

[0022] The above-mentioned rotating shaft 31 can be directly integrally formed in the housing 1, and connected to the first rod 11 through the water channel in the housing 1. However, considering that the water channel with multiple turns may cause the risk of difficulty in demoulding and increased cost, the present invention sets a rotating shaft seat 3, an adapter 4 and a bottom cover 5 in the housing 1; the rotating shaft seat 3 is provided with the above-mentioned rotating shaft 31 and a connecting shaft 32 parallel to the rotating shaft 31 on the surface facing the inside of the housing 1, and the rotating shaft seat 3 is provided with a connecting groove 33 on the surface facing away from the inside of the housing 1, and the two ends of the connecting groove 33 are respectively connected to the rotating shaft 31 and the connecting shaft 32; the adapter 4 is statically sealed and plugged into the end of the first rod 11, and the connecting shaft 32 is statically sealed and plugged into the side of the adapter 4; the bottom cover 5 is statically sealed and covers the periphery of the connecting groove 33. Thus, the bottom cover 5 and the connecting groove 33 form a closed water path between the connecting shaft 32 and the rotating shaft 31, and the first rod 11 is connected to the rotating shaft 31 through the adapter 4, the connecting shaft 32, and the connecting groove 33; during production, the rotating shaft seat 3, the adapter 4, and the bottom cover 5 can be independently produced and demolded, and since the connecting shaft 32 is parallel to the rotating shaft 31, they can be demolded in the same direction, thereby reducing the difficulty of demolding; in addition, since the adapter 4 is inserted into the first rod 11, the connecting shaft 32 is inserted into the adapter 4, the sleeve 2 is sleeved on the rotating shaft 31 and the second rod 21 is limited by the opening 12 to prevent the sleeve 2 from moving in the axial direction of the rotating shaft 31.

[0023] Furthermore, a first sealing ring 6 is provided between the connecting shaft 32 and the adapter 4; and a second sealing ring 7 is provided between the adapter 4 and the first rod 11, both of which are used to improve the sealing performance and prevent water leakage.

[0024] At the same time, the bottom cover 5 and the shaft seat 3 are assembled by welding, gluing, etc. and connected into a whole to ensure sealing performance. The preferred method is ultrasonic welding. The periphery of the connecting groove 33 is provided with a step portion 331 for the bottom cover 5 to cooperate with, and the step portion 331 is provided with a flange 332 for welding.

[0025] Secondly, in order to make the structure of the product more stable and prevent the shaft seat 3 from shaking due to water pressure, a partition 13 is arranged in the above-mentioned shell 1, and a nut 8 is embedded in the end of the shaft 31. A screw 9 is passed through the partition 13 and threadedly connected in the nut 8 to lock the shaft 31 on the partition 13, thereby fixing the shaft seat 3; at the same time, a slider 43 and a slider slot 131 are arranged between the adapter 4 and the partition 13 to achieve installation limit for the adapter 4, and the slider slot 131 has a flared opening for the slider 43 to move through and a constricted opening for preventing the slider 43 from escaping from the slider slot 131. After the slider 43 is embedded in the slider slot 131 through the flared opening, it moves in the direction of the constricted opening until the end of the adapter 4 is inserted into the first rod 11, and a buckle 44 and a buckle slot 34 are arranged between the adapter 4 and the shaft seat 3 to achieve reinforcement after connection.

[0026] In addition, the housing 1 is provided with a decorative cover 10 for covering components such as the shaft seat 3 , the adapter 4 , and the bottom cover 5 , so as to achieve a neat appearance.

[0027] The above-mentioned rotating shaft 31 is provided with annular installation grooves 313 on both axial sides of the water groove 311, and the two installation grooves 313 are provided with third sealing rings 20. The third sealing ring 20 is tightly fitted between the circumferential surface of the rotating shaft 31 and the inner wall of the sleeve 2 to achieve a dynamic sealing effect.

[0028] In order to lock the rotation of the sleeve 2 on the rotating shaft 31 and realize that the shower arm maintains the angle between the second rod 21 and the first rod 11 after the angle is adjusted, the present invention is also designed with a locking mechanism, which includes a locking member 30, an elastic member 40, a limiting member 50 and an operating member 60; the circumferential surface of the sleeve 2 is provided with a first concave-convex portion 22; the locking member 30 is slidably fitted in the housing 1 along the radial direction of the sleeve 2, and is provided with a second concave-convex portion 301 matching the first concave-convex portion 22; the elastic member 40 is arranged in the housing 1 and acts on the locking member 30, so that the second concave-convex portion 301 is engaged with the first concave-convex portion 22 to achieve locking of the sleeve 2; the limiting member 50 is movably fitted on the sliding path of the locking member 30, so that the locking member 30 cannot be separated from the sleeve 2; the operating member 60 is exposed to the housing 1 and linked with the limiting member 50, and is used to drive the limiting member 50 to disengage from or enter the sliding path of the locking member 30. Therefore, when the limiting member 50 is on the sliding path of the locking member 30, it abuts against the end of the locking member 30. When the shaft sleeve 2 rotates, it cannot push the locking member 30 to compress the elastic member 40 through the first concave-convex portion 22 and the second concave-convex portion 301, so the shaft sleeve 2 cannot rotate; when the user drives the limiting member 50 through the operating member 60, the limiting member 50 is separated from the sliding path of the locking member 30 and is no longer blocked at the end of the locking member 30. When the shaft sleeve 2 rotates, it can push the locking member 30 to compress the elastic member 40 through the first concave-convex portion 22 and the second concave-convex portion 301, so the shaft sleeve 2 can rotate freely to adjust the relative angle between the second rod 21 and the first rod 11; at the same time, due to the elastic force of the elastic member 40, the limiting member 30 can maintain the state of locking the shaft sleeve 2. When the shaft sleeve 2 rotates, it will be subject to resistance from the limiting member 30, so that it will not shake or change its angle due to the gravity of the first rod 11 or the second rod 21 when the user does not apply force.

[0029] In some embodiments of the locking mechanism, the first concave-convex portion 22 is a plurality of straight teeth with first inclined surfaces 221 on both sides, and the second concave-convex portion 301 is a plurality of straight teeth with second inclined surfaces 3011 on both sides. By designing the first inclined surfaces 221 and the second inclined surfaces 3011, the circumferential torque during the rotation of the sleeve 2 can be more converted into the radial thrust for pushing the locking member 30 to slide, so as to push the locking member 30 more smoothly when the stopper 50 does not block the locking member 30. It can be understood that the number of straight teeth of the first concave-convex portion 22 is reasonably designed according to the rotation range of the sleeve 2 required by the product, and the number of straight teeth of the second concave-convex portion 301 is set to 3 to 5 to meet the requirements.

[0030] In some embodiments of the locking mechanism, a corresponding slide groove may be designed in the housing 1 to cooperate with the locking member 30 and guide the locking member 30. In this embodiment, a slide groove 41 for sliding cooperation with the locking member 30 is specifically provided on the peripheral surface of the adapter 4, and the slide groove 41 is parallel to the first rod 11. At the same time, a partition 13 is also provided in the housing 1, so that a channel for sliding cooperation with the locking member 30 is formed between the slide groove 41 and the partition 13 to guide the locking member 30; in addition, a guide groove 42 for active cooperation with the limiting member 50 may be provided at the end of the slide groove 41 to guide the movement of the limiting member 50.

[0031] In some embodiments of the locking mechanism, the elastic member 40 is a spring; one end of the locking member 30 is provided with an axial groove 302 for the elastic member 40 to be embedded.

[0032] Furthermore, the above-mentioned limiting member 50 is provided with a giving way opening 501 for giving way to the elastic member 40 to avoid the position and state of the moving elastic member 40 when the limiting member 50 moves, and giving way steps 502 are provided on both sides of the giving way opening 501; when the limiting member 50 is in the sliding path of the locking member 30, the giving way step 502 is misaligned with the locking member 30, the limiting surface 503 of the limiting member 50 is opposite to the locking member 30, and the locking member 30 cannot slide; on the contrary, when the limiting member 50 is out of the sliding path of the locking member 30, the limiting surface 503 is misaligned with the locking member 30, the giving way step 502 is opposite to the locking member 30, and the locking member 30 can slide to embed into the giving way step 502 and compress the elastic member 40 at the same time.

[0033] In some embodiments of the locking mechanism, the operating member 60 is a button with two ends swingingly engaged on the housing 1, and one end of the operating member 60 is movably connected to the limiting member 50; the limiting member 50 is provided with a hook 504 hooked on the inner wall of the operating member 60. When the user presses the operating member 60 away from one end of the limiting member 50, the limiting member 50 at the other end can be driven to break away from the sliding path of the locking member 30 by the swing of the operating member 60, thereby unlocking the rotation of the shaft sleeve 2; when the user presses the operating member 60 close to one end of the limiting member 50, the limiting member 50 can be simultaneously pressed back to the sliding path of the locking member 30, thereby locking the shaft sleeve 2. Since the operating member 60 is press-driven and the shower arm usually extends in the up and down directions, the position of the limit member 50 can be maintained after the user presses it, and the limit member 50 will not reset automatically, so that the user only needs to press the operating member 60 once to arbitrarily adjust the relative angle between the second rod 21 and the first rod 11, and press the operating member 60 again after the adjustment is completed to drive the limit member 50 to reset. There is no need to press the operating member 60 for a long time, and the operation is more convenient and quick, which is especially suitable for shower arms with longer first rod 11 and second rod 21.

[0034] Furthermore, a latch 70 for the operating member 60 to swing with is disposed in the housing 1 .

[0035] Secondly, the present invention also includes a latch seat 80 installed in the housing 1, and the latch seat 80 is provided with a claw 801 for the latch 70 to be embedded. The latch seat 80 can be fixed in the housing 1 by screw locking, such as being fixed on the above-mentioned partition 13, and is locked with the rotating shaft 31 by the same screw 9, and the screw 9 passes through the latch seat 80 and the partition 13 in sequence and is threadedly connected with the nut 8 on the rotating shaft 31. Only one screw 9 is needed to fix the two components in the housing 1, and the installation is simpler.

[0036] The installation steps of the partial structure of the present invention are as follows: after the locking member 30 and the elastic member 40 are installed into the adapter 4, the whole is installed into the shell 1, and the whole is fixed relative to the shell 1 by sliding and engaging the slider 43 with the slider slot 131; then the shaft sleeve 2 is installed at the opening 12, and then the shaft seat 3 is installed into the shell 1 to assemble it with the adapter 4 and the shaft sleeve 2, and the shaft seat 3 is locked with screws; then the limit member 50 is passed through the partition 13 to cooperate with the locking member 30; finally, the decorative cover 10 is ultrasonically welded to the shell 1.

[0037] The main improvement of the present invention lies in the shaft structure between the first rod 11 and the second rod 21. In actual products, the shaft structure can have multiple applications: See also Figure 6 , the first rods 11, 11' of the two housings 1, 1' can be connected into one rod, thereby forming an arm with housings 1 at both ends; see Figure 7 , the first rod 11 and the second rod 21 of the housing 1 and the sleeve 2 can be connected into one rod, thereby forming an arm with the housing 1 and the sleeve 2 at both ends; see Figure 8 The second rod 21 of the sleeve 2 can be connected to the joint 90 with external threads to form a whole, so as to connect the shower head, or the second rod 21 of the shaft head 2 can be connected to the joint with internal threads to form a whole, so as to connect the water supply end. The above parts, together with other parts of the rotating shaft structure disclosed in the present invention, can be combined to form a two-stage or even more-stage shower arm to meet the needs of different scenes and be more flexible in use.

[0038] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A rotating shaft structure of a shower arm, characterized in that: including a housing and a sleeve; The first rod and the opening are respectively provided on both sides of the shell; a hollow rotating shaft is provided in the shell, the rotating shaft is connected with the first rod, and an annular water groove is provided on the circumference of the rotating shaft, and a plurality of water holes connected to the rotating shaft are provided at the bottom of the water groove; The shaft sleeve is dynamically and sealingly sleeved on the circumference of the rotating shaft, and a second rod connected to the water channel is provided on one side of the shaft sleeve; the second rod passes through the opening of the housing; The axis of the first rod and the axis of the second rod are both perpendicular to the axis of the rotating shaft, and the feet of the axes of the first rod and the second rod on the axis of the rotating shaft are at the same point.

2. The rotating shaft structure of the shower arm according to claim 1, characterized in that: A rotating shaft seat, an adapter and a bottom cover are arranged in the shell; the rotating shaft and a connecting shaft parallel to the rotating shaft are arranged on the surface of the rotating shaft seat facing the inside of the shell, and a connecting groove is arranged on the surface of the rotating shaft seat facing away from the inside of the shell, and the two ends of the connecting groove are respectively connected with the rotating shaft and the connecting shaft; the adapter is statically and sealingly inserted into the end of the first rod, and the connecting shaft is statically and sealingly inserted into the side of the adapter; the bottom cover is statically and sealingly covered on the periphery of the connecting groove.

3. The rotating shaft structure of the shower arm according to claim 2, characterized in that: The bottom cover and the rotating shaft seat are assembled by; the periphery of the connecting groove is provided with a step portion for the bottom cover to cooperate with, and the step portion is provided with a flange for welding.

4. The rotating shaft structure of the shower arm according to claim 2, characterized in that: A partition is provided in the shell, a nut is embedded in the end of the rotating shaft, a screw is passed through the partition and threadedly connected in the nut to lock the rotating shaft on the partition; a slider and a slider slot are provided between the adapter and the partition, and a buckle and a buckle slot are provided between the adapter and the rotating shaft seat.

5. The rotating shaft structure of the shower arm according to claim 1, characterized in that: It also includes a locking member, an elastic member, a limiting member and an operating member; a first concave-convex portion is provided on the circumferential surface of the sleeve; the locking member is slidably fitted in the shell along the radial direction of the sleeve, and is provided with a second concave-convex portion matching the first concave-convex portion; the elastic member is arranged in the shell and acts on the locking member, so that the second concave-convex portion is engaged with the first concave-convex portion to achieve locking of the sleeve; the limiting member is movably fitted on the sliding path of the locking member, so that the locking member cannot be separated from the sleeve; the operating member is exposed to the shell and linked with the limiting member, and is used to drive the limiting member.

6. The rotating shaft structure of the shower arm according to claim 5, characterized in that: The first concave-convex part is a plurality of straight teeth with first inclined surfaces on both sides, and the second concave-convex part is a plurality of straight teeth with second inclined surfaces on both sides.

7. The rotating shaft structure of the shower arm according to claim 5, characterized in that: The elastic member is a spring; one end of the locking member is provided with an axial groove for embedding the elastic member.

8. The rotating shaft structure of the shower arm according to claim 7, characterized in that: The limiting member is provided with a giving opening for giving way to the elastic member, and giving steps are provided on both sides of the giving opening; when the limiting member is in the sliding path of the locking member, the giving step is misaligned with the locking member, and the locking member can slide; when the limiting member is out of the sliding path of the locking member, the giving step is opposite to the locking member, and the locking member can slide to embed into the giving step and compress the elastic member at the same time.

9. The rotating shaft structure of the shower arm according to claim 5, characterized in that: The operating member is a button with two ends swingingly fitted on the housing, and one end of the button is movably connected to the limiting member; the limiting member is provided with a hook hooked on the inner wall of the operating member.

10. The rotating shaft structure of the shower arm according to claim 9, characterized in that: A latch for swinging and cooperating with the operating member is arranged in the shell.

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